公开(公告)号：US20170108642A1

公开(公告)日：2017-04-20

申请号：US15290105

申请日：2016-10-11

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Masaaki HIRANO ,  Hirotaka SAKUMA

IPC: G02B6/036 ,  C03C13/04

CPC classification number: G02B6/03694 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2213/00 ,  G02B6/03611

Abstract: An optical fiber having a reduced attenuation includes a silica glass core and a silica glass cladding. The silica glass core has substantially no germanium and includes a first core and a second core. The second core encloses the first core, the refractive index of the second core is larger than the refractive index of the first core, and the average value of halogen concentration of the second core is 5000 ppm or more. The silica glass cladding surrounds the second core and contains substantially no gemianium. The refractive index of the cladding is smaller than the refractive index of the first core.

公开(公告)号：US20170097465A1

公开(公告)日：2017-04-06

申请号：US15188323

申请日：2016-06-21

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Hazel Benton Matthews, III ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC: G02B6/036 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02

CPC classification number: G02B6/02019 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01846 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2207/32 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02238 ,  G02B6/02395 ,  G02B6/03627 ,  G02B6/0365

Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.

公开(公告)号：US20160168010A1

公开(公告)日：2016-06-16

申请号：US14958024

申请日：2015-12-03

Applicant: Corning Incorporated

Inventor： Sezhian Annamalai ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina

IPC: C03C3/06 ,  C03B25/02 ,  C03B19/14 ,  C03C3/112 ,  C03C4/00

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B19/1461 ,  C03B25/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/23 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2201/54 ,  C03C3/112 ,  C03C4/00 ,  C03C2201/12 ,  C03C2201/14 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2203/52

Abstract: A doped silica-titania glass article is provided that includes a glass article having a glass composition comprising (i) a silica-titania base glass, (ii) a fluorine dopant, and (iii) a second dopant. The fluorine dopant has a concentration of fluorine of up to 5 wt. % and the second dopant comprises one or more oxides selected from the group consisting of Al, Nb, Ta, B, Na, K, Mg, Ca and Li oxides at a total oxide concentration from 50 ppm to 6 wt. %. Further, the glass article has an expansivity slope of less than 0.5 ppb/K2 at 20° C. The second dopant can be optional. The composition of the glass article may also contain an OH concentration of less than 100 ppm.

Abstract translation: 提供掺杂二氧化硅 - 二氧化钛玻璃制品，其包括具有玻璃组合物的玻璃制品，所述玻璃组合物包含（i）二氧化硅 - 二氧化钛基底玻璃，（ii）氟掺杂剂和（iii）第二掺杂剂。 氟掺杂剂的氟浓度高达5wt。 ％，第二掺杂剂包含一种或多种选自Al，Nb，Ta，B，Na，K，Mg，Ca和Li氧化物的氧化物，其总氧化物浓度为50ppm至6wt。 ％。 此外，玻璃制品在20℃下具有小于0.5ppb / K 2的膨胀斜率。第二掺杂剂可以是任选的。 玻璃制品的组成也可以含有小于100ppm的OH浓度。

公开(公告)号：US20160147010A1

公开(公告)日：2016-05-26

申请号：US14943190

申请日：2015-11-17

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Yoshihiro SAITO ,  Yuki KAWAGUCHI ,  Masaaki HIRANO

IPC: G02B6/02

CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2203/40

Abstract: An optical fiber containing an alkali metal and capable of reducing Rayleigh scattering loss is provided. An optical fiber has a core and a cladding made of silica glass and enclosing the core. The cladding contains fluorine and has a refractive index lower than the refractive index of the core. The core contains first group dopants selected from the group of Na element, K element, or a compound thereof at an average concentration of 0.2 ppm or more and 10 ppm or less. The core also contains second group dopants for reducing the viscosity of silica glass and having a diffusion coefficient of 1×10−12 cm2/s or more and smaller than the diffusion coefficient of the first group dopants, by an average concentration of 0.2 ppm or more at a temperature of 2000° C. to 2300° C.

Abstract translation: 提供含有碱金属并能够降低瑞利散射损失的光纤。 光纤具有由石英玻璃制成的芯和包层，并且包围芯。 包层含氟，折射率低于芯的折射率。 核心包含平均浓度为0.2ppm以上且10ppm以下的选自Na元素，K元素或其化合物的第一族掺杂剂。 该芯还含有第二组掺杂剂，用于降低石英玻璃的粘度，并且扩散系数为1×10-12cm2 / s以上且小于第一组掺杂剂的扩散系数，平均浓度为0.2ppm或 更高温度在2000°C至2300°C

公开(公告)号：US20160145147A1

公开(公告)日：2016-05-26

申请号：US14950374

申请日：2015-11-24

Applicant: CORNING INCORPORATED

Inventor： Sezhian Annamalai ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina ,  Lisa Anne Moore

IPC: C03C3/112 ,  C03C3/076 ,  C03B19/02 ,  G03F1/22 ,  C03B25/02 ,  C03C3/06 ,  C03C3/089

CPC classification number: C03C3/112 ,  C03B5/225 ,  C03B19/02 ,  C03B25/00 ,  C03B25/02 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/42 ,  C03C3/06 ,  C03C3/089 ,  C03C3/115 ,  C03C21/007 ,  C03C23/007 ,  C03C2201/10 ,  C03C2201/12 ,  C03C2201/14 ,  C03C2201/23 ,  C03C2201/30 ,  C03C2201/42 ,  C03C2203/10 ,  C03C2203/54 ,  G03F1/22

Abstract: A method of forming a doped silica-titania glass is provided. The method includes blending batch materials comprising silica, titania, and at least one dopant. The method also includes heating the batch materials to form a glass melt. The method further includes consolidating the glass melt to form a glass article, and annealing the glass article.

Abstract translation: 提供了形成掺杂二氧化硅 - 二氧化钛玻璃的方法。 该方法包括混合包含二氧化硅，二氧化钛和至少一种掺杂剂的批料。 该方法还包括加热批料以形成玻璃熔体。 该方法还包括固化玻璃熔体以形成玻璃制品，并对玻璃制品进行退火。

公开(公告)号：US20160109651A1

公开(公告)日：2016-04-21

申请号：US14825297

申请日：2015-08-13

Applicant: OFS Fitel, LLC

Inventor： Peter I. Borel ,  Rasmus V.S. Jensen ,  Ole A. Levring ,  Jorgen Ostgaard Olsen ,  David W. Peckham ,  Dennis J. Trevor ,  Patrick W. Wisk ,  Man F. Yan

IPC: G02B6/036 ,  C03B37/027

CPC classification number: G02B6/0365 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/01853 ,  C03B37/01861 ,  C03B37/01869 ,  C03B37/01892 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/222 ,  C03B2203/223 ,  C03B2205/40 ,  C03B2205/42 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2203/44 ,  C03C2203/46 ,  G02B6/02019 ,  G02B6/03683 ,  G02B6/03694 ,  Y02P40/57

Abstract: The core region of an optical fiber is doped with chlorine in a concentration that allows for the viscosity of the core region to be lowered, approaching the viscosity of the surrounding cladding. An annular interface region is disposed between the core and cladding and contains a concentration of fluorine dopant sufficient to match the viscosity of the core. By including this annular stress accommodation region, the cladding layer can be formed to include the relatively high concentration of fluorine required to provide the desired degree of optical signal confinement (Le., forming a “low loss” optical fiber).

Abstract translation: 光纤的核心区域掺杂有氯，其浓度允许芯区的粘度降低，接近周围包层的粘度。 在芯和包层之间设置环形界面区域，并且包含足以匹配芯的粘度的氟掺杂剂的浓度。 通过包括这种环形应力容纳区域，可以形成包层，以包括提供期望程度的光信号限制所需的相对高浓度的氟（形成“低损耗”光纤）。

公开(公告)号：US20150316712A1

公开(公告)日：2015-11-05

申请号：US14314394

申请日：2014-06-25

Applicant: CORNING INCORPORATED

Inventor： James Gary Anderson ,  Dana Craig Bookbinder ,  Lisa Carine Chacon ,  Calvin Thomas Coffey ,  Adam James Ellison ,  Gregory Gerard Gausman ,  Rostislav Radiyevich Khrapko ,  Stephan Lvovich Logunov ,  Michael Thomas Murtagh ,  Clinton Damon Osterhout ,  Sabyasachi Sen ,  William Anthony Whedon

IPC: G02B6/02 ,  C03B37/018 ,  C03B37/027 ,  C03B37/014 ,  G02B6/028 ,  C03B37/012

CPC classification number: G02B6/0228 ,  C03B37/01211 ,  C03B37/0124 ,  C03B37/014 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/0146 ,  C03B37/01466 ,  C03B37/01473 ,  C03B37/01807 ,  C03B37/01815 ,  C03B37/01838 ,  C03B37/01853 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2203/29 ,  C03B2207/90 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C13/048 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/50 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/028 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03694 ,  Y10T428/294

Abstract: Disclosed is an optical fiber having a core with an alkali metal oxide dopant in an peak amount greater than about 0.002 wt. % and less than about 0.1 wt. %. The alkali metal oxide concentration varies with a radius of the optical fiber. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained. Also disclosed are several methods of making the optical fiber including the steps of forming an alkali metal oxide-doped rod, and adding additional glass to form a draw perform. Preferably, the draw preform has a final outer dimension (d2), wherein an outer dimension (d1) of the rod is less than or equal to 0.06 times the final outer dimension (d2). In a preferred embodiment, the alkali metal oxide-doped rod is inserted into the centerline hole of a preform to form an assembly.

Abstract translation: 公开了一种光纤，其具有具有大于约0.002重量％的峰值的碱金属氧化物掺杂剂的芯。 ％且小于约0.1wt。 ％。 碱金属氧化物浓度随着光纤的半径而变化。 通过适当地选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤。 还公开了几种制造光纤的方法，包括形成碱金属氧化物掺杂棒的步骤，并且添加额外的玻璃以形成拉伸性能。 优选地，拉伸预成型件具有最终外部尺寸（d2），其中杆的外部尺寸（d1）小于或等于最终外部尺寸（d2）的0.06倍。 在一个优选实施例中，将掺入碱金属氧化物的棒插入到预成型件的中心线孔中以形成组件。

公开(公告)号：US09086524B2

公开(公告)日：2015-07-21

申请号：US13603399

申请日：2012-09-04

Applicant: Chen Yang ,  Qingrong Han ,  Weijun Tong ,  Jie Luo ,  Yongtao Liu

Inventor： Chen Yang ,  Qingrong Han ,  Weijun Tong ,  Jie Luo ,  Yongtao Liu

IPC: C03B37/018 ,  C03B37/027 ,  G02B6/028 ,  C03B37/012 ,  C03B37/014 ,  G02B6/036 ,  G02B6/02 ,  C03C13/04

CPC classification number: G02B6/0285 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/0183 ,  C03B37/01892 ,  C03B37/02754 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/86 ,  C03B2203/23 ,  C03B2205/09 ,  C03B2205/14 ,  C03C13/045 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/31 ,  C03C2203/40 ,  G02B6/02395 ,  G02B6/0283 ,  G02B6/03633 ,  Y02P40/57

Abstract: A method for manufacturing an optical fiber preform, including: a) providing a lining tube as a substrate tube, and doping and depositing by a PCVD or an MCVD process; b) in the reacting gas of silicon tetrachloride and oxygen, introducing a fluorine-containing gas for fluorine doping, introducing germanium tetrachloride for germanium doping, ionizing the reacting gas in the lining tube through microwaves to form plasma, depositing the plasma on the inner wall of the lining tube in the form of glass; c) after the completion of deposition, processing the deposited lining tube into a solid core rod by melting contraction through an electric heating furnace; d) sleeving the solid core rod into a pure quartz glass jacketing tube and manufacturing the two into an optical fiber preform; and e) allowing the effective diameter d of the optical fiber preform to become between 95 and 205 mm.

Abstract translation: 一种制造光纤预制棒的方法，包括：a）提供衬管作为衬底管，并通过PCVD或MCVD工艺进行掺杂和沉积; b）在四氯化硅和氧气的反应气体中，引入用于氟掺杂的含氟气体，引入用于锗掺杂的四氯化锗，通过微波将衬里管中的反应气体离子化以形成等离子体，将等离子体沉积在内壁上 的衬里管以玻璃的形式; c）沉积完成后，通过电加热炉熔化收缩将沉积的衬管加工成固体芯棒; d）将实心芯棒套入纯石英玻璃护套管并将其制造成光纤预制棒; 以及e）允许光纤预型件的有效直径d变为95至205mm。

公开(公告)号：US08735308B2

公开(公告)日：2014-05-27

申请号：US12718776

申请日：2010-03-05

Applicant: Akio Koike ,  Chikaya Tamitsuji ,  Kunio Watanabe ,  Tomonori Ogawa

Inventor： Akio Koike ,  Chikaya Tamitsuji ,  Kunio Watanabe ,  Tomonori Ogawa

IPC: C03C15/00 ,  C03C17/00 ,  C03C19/00 ,  C03C3/06

CPC classification number: C03C3/06 ,  C03B19/1423 ,  C03B19/1453 ,  C03B19/1461 ,  C03B25/02 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/42 ,  C03B2207/36 ,  C03C4/0085 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/42 ,  C03C2203/54

Abstract: The present invention relates to an optical member including a TiO2-containing silica glass having: a TiO2 concentration of from 3 to 10% by mass; a Ti3+ concentration of 100 wt ppm or less; a thermal expansion coefficient at from 0 to 100° C., CTE0-100, of 0±150 ppb/° C.; and an internal transmittance in the wavelength range of 400 to 700 nm per a thickness of 1 mm, T400-700, of 80% or more, in which the optical member has a ratio of variation of Ti3+ concentration to an average value of the Ti3+ concentration, ΔTi3+/Ti3+, on an optical use surface, is 0.2 or less.

Abstract translation: 本发明涉及一种含有TiO2含量为3〜10质量％的含TiO 2的二氧化硅玻璃的光学构件， Ti3 +浓度为100重量ppm以下; 0-100℃的热膨胀系数，CTE0-100，为0±150ppb /℃。 并且在400〜700nm的波长范围内的内部透射率，每1mm厚度，T400〜700，为80％以上，其中光学部件具有Ti 3+浓度的变化比与Ti 3+的平均值的比值， 在光学用表面上的浓度＆Dgr; Ti 3+ / Ti 3+为0.2以下。

公开(公告)号：US20120324960A1

公开(公告)日：2012-12-27

申请号：US13583605

申请日：2011-03-10

Applicant: Ralph Sattmann ,  Jan Vydra ,  Michael Huenermann

Inventor： Ralph Sattmann ,  Jan Vydra ,  Michael Huenermann

IPC: C03B37/027 ,  G02B6/036

CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01242 ,  C03B37/018 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2205/30 ,  C03C13/045 ,  C03C2201/12 ,  G02B6/03633 ,  G02B6/0365 ,  Y10T428/2935

Abstract: Methods for producing an optical fiber by elongating a silica glass blank or a coaxial group of silica glass components, on the basis of which a fiber is obtained that comprises a core zone, an inner jacket zone enclosing the core zone and a ring zone surrounding the inner jacket zone, are known. In order to provide, proceeding from this, a method, a tubular semi-finished product and a group of coaxial components for the cost-effective production of an optical fiber, which is characterized by a high quality of the boundary between the core and jacket and by low bending sensitivity, according to the invention, the silica glass of the ring zone is provided in the form of a ring zone tube made of silica glass having a mean fluorine content of at least 6000 weight ppm and the tube has an inner tube surface and an outer tube surface, wherein via the wall of the ring zone tube, a radial fluorine concentration profile is adjusted which has an inner fluorine depletion layer with a layer thickness of at least 1 μm and no more than 10 μm, in which the fluorine content decreases toward the inner tube surface and is no more than 3000 weight ppm in a region close to the surface which has a thickness of 1 μm.

Abstract translation: 通过使二氧化硅玻璃坯料或同轴的二氧化硅玻璃成分组延长来制造光纤的方法，在此基础上获得包含芯区的纤维，包围芯区的内护套区和围绕该芯区的环带 内护套区域，已知。 为了提供一种用于成本有效地生产光纤的方法，管状半成品和一组同轴部件，其特征在于芯和夹套之间的边界质量高 并且通过低弯曲灵敏度，根据本发明，环区的石英玻璃以平均氟含量为至少6000重量ppm的石英玻璃制成的环形管的形式提供，并且管具有内管 表面和外管表面，其中通过环带管的壁，调节径向氟浓度分布，其具有层厚度为至少1μm且不大于10μm的内氟耗尽层，其中 氟含量向内管表面减少，并且在接近表面厚度为1μm的区域中不超过3000重量ppm。